Did King Charles deserve to die? Watch
Parliament tried to reason with him, and offer concessions, but he wouldn't budge.
And he had personal rule, which was against the constitution.
I do admit though his trial was just a sham trial, as he had no real defence, and he had a point because nobody could really try a King. Could things have changed had he remained alive?
- Louis Antoine de Saint-Just, at the trial of Louis XVI
The question of who was 'right' in the Civil War is complex. The King and Parliament equally were right and wrong on certain points, and on others overemphasised their cause and inflated grievances and excuses. I think, for the development of our constitution as it now stands, it's good that Parliament won.
But for the killing of the King. The difficulty was that he couldn't be expected to honour the settlement that Parliament wanted, and they couldn't let him go free. But nor could they imprison him for life, as that would leave an eternal mark on Parliament's legitimacy. Something had to give, and the extremists in Parliament took the initiative, setting up a sham trial in violation to the law of the land.
He didn't deserve to die, but his death was inevitable with a parliamentary victory, I believe. Suffice to say, the Republic was a failure and the monarchy was - thankfully - restored.